The compound(s) which generate(s) N_2 gas upo | vedclass

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(A) $NH_4 NO_3$ decomposes as: $NH_4 NO_3(s) \rightarrow N_2 O(g) + 2 H_2 O(g)$. It produces $N_2 O$,not $N_2$.$(NH_4)_2 Cr_2 O_7$ decomposes as: $(NH

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$B, C$

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(A) $NH_4 NO_3$ decomposes as: $NH_4 NO_3(s) \rightarrow N_2 O(g) + 2 H_2 O(g)$. It produces $N_2 O$,not $N_2$.$(NH_4)_2 Cr_2 O_7$ decomposes as: $(NH_4)_2 Cr_2 O_7(s) \rightarrow N_2(g) + Cr_2 O_3(s) + 4 H_2 O(g)$. This produces $N_2$ gas.$Ba(N_3)_2$ decomposes as: $Ba(N_3)_2(s) \rightarrow Ba(s) + 3 N_2(g)$. This produces $N_2$ gas.$Mg_3 N_2$ is a stable nitride and does not undergo thermal decomposition below $300^{\circ} C$.Therefore,compounds $(B)$ and $(C)$ generate $N_2$ gas.

The compound$(s)$ which generate$(s)$ $N_2$ gas upon thermal decomposition below $300^{\circ} C$ is (are)
$(A)$ $NH_4 NO_3$
$(B)$ $(NH_4)_2 Cr_2 O_7$
$(C)$ $Ba(N_3)_2$
$(D)$ $Mg_3 N_2$

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The compound$(s)$ which generate$(s)$ $N_2$ gas upon thermal decomposition below $300^{\circ} C$ is (are)$(A)$ $NH_4 NO_3$$(B)$ $(NH_4)_2 Cr_2 O_7$$(C)$ $Ba(N_3)_2$$(D)$ $Mg_3 N_2$